Attachment-operating means for sewing-machines.



No. 799,959. V PATENTED SEPT. 19, 1905 J. H. TROWBRIDGE. ATTACHMENT OPERATING MEANS FOR SEWING MACHINES.

APPLICATION FILED FEB. 10. 1904.

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ATTACHMENT OPERATING MEANS FOR SEWING MACHINES.

APPLICATION FILED PEB.10,1904.

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ATTORN E\".

JOHN H. TROWBRIDGE, OF NEWARK, NEW JERSEY.

ATTACHMENT-OPERATING MEANS FOR SEWING-MACHINES.

Specification of Letters Patent.

Patented Sept.- 19, 1905.

Application filed February 10, 1904. Serial No. 192,867.

To all whom it may concern:

Be it known that 1, JOHN H. TROWBRIDGE, a citizen of the United States, residing at N ewark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Attachment-Operating Means for Sewing-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and to numerals of reference marked thereon, which form a part of this specification.

The objects of this invention are to facilitate the work of hemstitching, gathering or rufliing, plaiting, and performing other work produced by the aid of what are commonly termed sewing machine attachments; to secure a more perfect result of such work; to hold the goods in straight position while the same are being fed forward in the rufliing, hemstitching, or plaiting operations, and thus preventing the goods from buckling or fulling up from time to time, whereby they are after having been perforated by the plunger caused to properly and surely bring the perforations to the path of the needle and to render the work more perfect, and to secure other advantages and results, some of which may be referred to hereinafter in connection with the description of the working parts.

The invention consists in the improved sewing-machine attachment and in the arrangements and combinations of parts of the same, all substantially as will be hereinafter set forth, and finally embraced in the clauses of.

the claim.

Referring to the accompanying drawings, in which like numerals of reference indicate corresponding parts in each of the several figures, Figure 1 is a plan of my improvement applied to a sewing-machine, a portion of the latter being shown. Fig. 2 is a side elevation of the same. Fig. 3 is a section taken at line of Fig. 1. Fig. 4 is a perspective view of a laceguide used in rufliing. Fig. 5 is a section taken through line y, Fig. 7. Fig. 6 is a perspective view of a certain slideway detached and showing a portion of the ruffler-slide therein. Fig. 7 is a plan of a slide and its carrier upon which the-attachments for ruffling or gathering, plaiting, and hemming are or may be secured.

In said drawings, 10 indicates the table portion of the main frame or bed of the sewingmachine.

11 is the ordinary throat-plate of the sewing-machine, having an opening in which works the usual feeding device 12, operated by a feed-bar (not shown) in any usual manner.

13, Fig. 2, indicates the ordinary presserfoot.

14. represents the needle, and 15 the punch or perforator for perforating the cloth when hemstitching.

Adjacent to the presser-foot 13, preferably toward the front of the sewing-machine, is arranged a plate 16, having slideways 17 17 arranged parallel with the line of horizontal movement of the said ordinary feed 12, and between said slideways is arranged a sliding carrying-plate 18, on which the hemstitching, rufiiing and gathering, or plaiting attachments are seated.

Beneath or on the under side of the sliding carrying-plate 18 is secured a downwardlyextending arm 19, which is perforated, as at 191, to receive a threaded connecting-rod 20, having a head 21 to engage the feed-operating bar 201, Fig. 5, so that when said feedbar operates in its usual manner in its feeding operations the said connecting-rod will.

be simultaneously moved, and with it the slide 18 and the attachments seated thereon. On said plate 18 are means facilitating an attachment thereto of the rufiiing, hemstitching, gathering, or similar attachments. Such means may be raised ribs 23, having threaded holes 24 to receive the set-screw 25, by which a hemmer attachment 26 is secured to the sliding carrying-plate 18, and in said carryingplate is a threaded perforation 27, Fig. 7 to receive the set-screw 271 for securing the laceguide 28 onto said sliding carrying-plate, the said lace-guide being used in connection with rufiiing or other operations in sewing. Said plate 18 may also be perforated at 29 to receive a set-screw 291 for fastening an adjustable bracket 30, providing a pivotal bearing 31 for a connecting-rod 32, adjustably fastened upon a lever upon alever 33 for operating a rufiler-slide 34:, arranged in a slideway 35, fastened on the slide 18 by means of asetscrew 36,- which enters the threaded hole 37, Fig. 7, of said carrier or plate 18.

Other attachments of any variety or kind may be seated on the carrying-plate without departing from the spirit or scope of the invention.

In operating my invention power is applied to the ordinary oscillating feed-bar 201, having the eccentric connection 202 with the connecting-rod 20, which is given alongitudinal reciprocating movement, which movement is communicated to the upwardly-extending arm 19 and from thence to the sliding carryingplate 18, which latter is made to work back and forth in the slideways 17 17' from and to ward the feeding device 12, presser-foot 13, needles, punches, and connections. It is understood that the feeding device 12, operated by the bar 201 in the usual manner, is timed to work with the presser-foot also in the usual manner-that is to say, when the presser-foot lowers against the feeding device 12 or the plate 11 it, as usual, holds the goods firmly. The slide 18 is so timed in its movements as to move away from the presser-foot when the'said presser-foot lowers into holding contact with the goods beneath, and thus when the said slide 18 moves backward from the presser-foot, and with it the attachment, such as the hemmer 26, carried by said slide, the goods held by the presser-foot are drawn through the attachment on said slide. On the return movement of the slide, the presser-foot' then being raised, the attachment moves forward with the feed. Thus the feed 12 is relieved somewhat from the work of forwarding the goods. It is of course understood that when the slide 18 carries a hemmer, such as shown at 26, it does not necessarily carry a ruifiing device 3 1, although the ruffling de vice and the hemming device may be mounted upon the slide 18 together and operate in connection with the said slide, certain of the goodsthe main cloth, for examplegoing through the hemming device, the lace passing underneath the hemmer and below the ruffler knife and being ruflied thereby, and afterward the two materials being joined by the usual hemsti-tching attachment in any suitable manner.

Having thus described the invention, what I claim as new is 1. In a sewing-machine, the combination with the table portion of the main frame of the sewing-machine, having a throat-plate opening to receive the feeding device 12, a presser-foot, said feeding device, a needle, and a feed-operating bar beneath the table, of a plate having slideways arranged parallel with the line of horizontal movement of said feeding device, a sliding carrying-plate arranged between said slideways and having an arm extending downwardly below said table, which arm is perforated at its lower end, a threaded connecting-rod secured in said perforation and having a head engaging said feedoperating bar, and effecting a transmission of power and movement from said operatingbar to said rod, and means on said sliding carrying-plate for securing fabric-engaging attachments thereto, substantially as set forth.

2. In combination with the needle of asewing-machine, of a table, a slideway on said table, an attachment-carrying slide, a slideway on said slide, a plaiting-slide in the last said slideway, a lever for operating the plaiting-slide, a connecting-rod 32, pivotally attached to the attachment-carrying slide and to said lever, and means for reciprocatingly operatingsaid attachment-carrying slide, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 29th day of January, 1904'.

JOHN H. TROWBRIDGE.

Witnesses:

CHARLES H. PELL, RUSSELL M. EVERETT. 

